Memory allocation is an operation of giving a program a block of memory.
Questions tagged [allocation]
1869 questions
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'new' causes std::bad_alloc on relatively not-large allocation
I'm working on a program used to process pictures of circuits close to a 1:1 micrometer:pixel ratio, so I've got quite a few elements in various vectors that are dynamically allocated (via constructor for CImg). Outside of that, I only have a few Qt…
Sarvadi
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4 answers
Storing a char in a char pointer
I have a global variable that is a *char. My main function header reads as int main(int argc, char* argv[argc]){...}. These two lines of code have to remain the way they are. The first argument of my main function is a number of type *char, that I…
Harsh Brew
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Calling alloc on a pointer
I'm using cocos2d with objective C.
I have a class called CrystalineBubble that is currently empty it inherits from CCNode.
#import
#import "cocos2d.h"
@interface CrystalineBubble : CCNode {
}
@end
When I try to…
Tiddly
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C - Printing a dynamic array
I am creating a program that modifies a dynamic array. It must initialize the array and be able to insert into it. I have been unable print the array after in order to test it, how would I go about this?
Piece of relevant code:
typedef struct {
…
B. Fett
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C dynamic array memory allocation, filling and sorting
I am creating four functions:
Allocate memory to an array
Generate random chars an fill the array
Sort the array into ascending order
Print the sorted array
Like you will see in the code, I use a printf to see the generated chars.
The…
Ion
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Is there a Tcl extension to deal with huge lists, workaround the 2GB allocation limit?
Based a previous node in this site, TCL max size of array
it would appear that Tcl cannot handle > 256M elements list. Is there an extension/future plan to overcome this limitation?O/W, I would assume that for the time being, and next foreseeable…
user1134991
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Memory use in cuda cusp linear solver
I am using cusp::bicgstab to solve a linear system Ax=b, in which A is a 3D Poisson on MxNxP mesh, x is unknowns, and b is the RHS. I have a K40m Tesla which has 12GB memory.
I tested with M=2000, N=2000, P=20 (80 millions unknowns), variable type…
PLe
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Deallocate memory from 2D mixed array and vector
a 2D and 3D array vectors are defined and used throughout a simulation, they are very large in size so deallocation is neccesary.
array, n> A;
array, n>, m> B;
what is the proper way?
jarhead
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why use the new operator to dynamically allocate memory for a string before assigning, when we can use the = operator to assign a string to it?
I am new to C++ and the concept of strings, why do I have to use the new operator to dynamically allocate resources when I can do it just assigning the string using the = operator ? (this is my first question and sorry for being messy)
student(const…
Seke Keretsu
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Simple efficiency question C++ (memory allocation)..and maybe some collision detection help?
I'm writing a little arcade-like game in C++ (a multidirectional 2d space shooter) and I'm finishing up the collision detection part.
Here's how I organized it (I just made it up so it might be a shitty system):
Every ship is composed of circular…
Chad
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How do I properly allocate memory in my C program?
I am writing a Windows program in C for a homework assignment and I am running into a problem that causes my program to crash with program.exe has stopped working. I believe that this is due to the memory not being allocated correctly.
The program…
Steven
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iPhone memory leak (a lot of allocations)
I tested my app in Instruments. No leaks found, but app crashes (not immediately - after ~20 minutes [depends on user's activity] of working). I viewed Allocations. It reports:
Category | Live Bytes | Count Live | # Living | # Transitory | Overall…
kpower
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Basic C Matrix segmentation memory allocation
I tried to run this program through the terminal and this error showed up.
"Segmentation Fault: 11"
I would like to know why . What this program does is, it reads a .ppm file and it saves it's information in a matrix variable of type Pixel, so, a…
Leonardo Dias
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How to allocate memory for a int array in a struct
I have a struct
typedef struct
{
int size; //size of array
int array*
}
How do I allocate memory for the int array using the size variable and malloc?
Andy Steven Llactahuamani
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How to find Dynamically allocated size in c language?
Write a function to find exact size of dynamically created * variable ?
Guys it is working but for static allocation only...
int alp=0;
printf("%d",(char*)(&alp+1)-(char*)(&alp));
it will return 4 correct size, which is size of int at 32 bit…
srhaider
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